#include <iostream>
using namespace std;

int main() {
    char a[501]; 
    int i;
    cin.getline(a, 501); 
    for (i = 0; a[i] != '\0'; i++) {
        if (a[i] >= 'A' && a[i] <= 'Z') {
            a[i] = a[i] + 32; 
    }
    }
     cout<<a;
    return 0;
}




